> retitling: "<audio> and <video> do not have sufficient support for
> synchronized alternative content for accessibility"
Better and maybe fine, except for the "alternative content"
categorization.
I would still say the alternative content is fallback. Fallback to
alternative content is more like a failure mode for <video> and
<audio>.
The category of content that is syncronized or strongly associated
with the intended <video> or <audio> content in order to provide added
control, some form of transliteration, or interaction using different
or supplementary media is the accessibility content.
Thanks Again,
Joe